./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf50661cace84e24af5f399094bd98fed0ff7444 ....................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 23:36:45,547 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 23:36:45,551 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 23:36:45,569 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 23:36:45,570 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 23:36:45,571 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 23:36:45,573 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 23:36:45,575 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 23:36:45,580 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 23:36:45,581 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 23:36:45,584 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 23:36:45,584 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 23:36:45,585 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 23:36:45,586 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 23:36:45,587 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 23:36:45,590 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 23:36:45,591 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 23:36:45,593 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 23:36:45,603 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 23:36:45,608 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 23:36:45,609 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 23:36:45,614 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 23:36:45,616 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 23:36:45,616 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 23:36:45,617 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 23:36:45,618 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 23:36:45,622 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 23:36:45,622 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 23:36:45,626 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 23:36:45,627 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 23:36:45,627 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 23:36:45,627 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 23:36:45,629 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 23:36:45,630 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 23:36:45,631 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 23:36:45,632 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 23:36:45,632 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-01 23:36:45,660 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 23:36:45,660 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 23:36:45,662 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 23:36:45,663 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 23:36:45,663 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 23:36:45,663 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 23:36:45,664 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 23:36:45,665 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 23:36:45,665 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 23:36:45,665 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 23:36:45,665 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 23:36:45,666 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 23:36:45,666 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 23:36:45,666 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 23:36:45,666 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 23:36:45,667 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 23:36:45,667 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 23:36:45,667 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 23:36:45,668 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 23:36:45,668 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 23:36:45,668 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 23:36:45,668 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 23:36:45,668 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 23:36:45,669 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 23:36:45,669 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 23:36:45,669 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 23:36:45,669 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 23:36:45,672 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 23:36:45,673 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 23:36:45,673 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 23:36:45,673 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 23:36:45,674 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 23:36:45,675 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf50661cace84e24af5f399094bd98fed0ff7444 [2019-01-01 23:36:45,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 23:36:45,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 23:36:45,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 23:36:45,764 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 23:36:45,765 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 23:36:45,766 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c [2019-01-01 23:36:45,830 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8badb89bb/0ee0e7ab678843f8b48326850bfa5ad7/FLAGc80303c22 [2019-01-01 23:36:46,345 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 23:36:46,346 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c [2019-01-01 23:36:46,363 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8badb89bb/0ee0e7ab678843f8b48326850bfa5ad7/FLAGc80303c22 [2019-01-01 23:36:46,653 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8badb89bb/0ee0e7ab678843f8b48326850bfa5ad7 [2019-01-01 23:36:46,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 23:36:46,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 23:36:46,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 23:36:46,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 23:36:46,666 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 23:36:46,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:36:46" (1/1) ... [2019-01-01 23:36:46,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4527ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:46, skipping insertion in model container [2019-01-01 23:36:46,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:36:46" (1/1) ... [2019-01-01 23:36:46,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 23:36:46,734 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 23:36:47,191 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:36:47,218 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 23:36:47,397 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:36:47,437 INFO L195 MainTranslator]: Completed translation [2019-01-01 23:36:47,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47 WrapperNode [2019-01-01 23:36:47,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 23:36:47,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 23:36:47,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 23:36:47,439 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 23:36:47,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (1/1) ... [2019-01-01 23:36:47,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (1/1) ... [2019-01-01 23:36:47,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 23:36:47,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 23:36:47,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 23:36:47,533 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 23:36:47,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (1/1) ... [2019-01-01 23:36:47,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (1/1) ... [2019-01-01 23:36:47,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (1/1) ... [2019-01-01 23:36:47,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (1/1) ... [2019-01-01 23:36:47,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (1/1) ... [2019-01-01 23:36:47,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (1/1) ... [2019-01-01 23:36:47,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (1/1) ... [2019-01-01 23:36:47,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 23:36:47,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 23:36:47,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 23:36:47,602 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 23:36:47,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:36:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 23:36:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-01 23:36:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 23:36:47,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 23:36:49,630 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 23:36:49,631 INFO L280 CfgBuilder]: Removed 348 assue(true) statements. [2019-01-01 23:36:49,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:36:49 BoogieIcfgContainer [2019-01-01 23:36:49,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 23:36:49,633 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 23:36:49,633 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 23:36:49,637 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 23:36:49,638 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:36:49,638 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 11:36:46" (1/3) ... [2019-01-01 23:36:49,639 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bbe8db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:36:49, skipping insertion in model container [2019-01-01 23:36:49,639 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:36:49,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:36:47" (2/3) ... [2019-01-01 23:36:49,640 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bbe8db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:36:49, skipping insertion in model container [2019-01-01 23:36:49,640 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:36:49,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:36:49" (3/3) ... [2019-01-01 23:36:49,645 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product61_true-unreach-call_false-termination.cil.c [2019-01-01 23:36:49,711 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 23:36:49,712 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 23:36:49,712 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 23:36:49,712 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 23:36:49,713 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 23:36:49,713 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 23:36:49,713 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 23:36:49,714 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 23:36:49,714 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 23:36:49,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states. [2019-01-01 23:36:49,781 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2019-01-01 23:36:49,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:36:49,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:36:49,794 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-01 23:36:49,795 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:36:49,795 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 23:36:49,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states. [2019-01-01 23:36:49,818 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2019-01-01 23:36:49,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:36:49,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:36:49,823 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-01 23:36:49,824 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:36:49,838 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25); 8#L-1true havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~6, main_~tmp~1;havoc main_~retValue_acc~6;havoc main_~tmp~1; 13#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 117#L73true main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 114#L310true assume 0 != main_~tmp~1; 74#L286true havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 52#L207-1true [2019-01-01 23:36:49,838 INFO L796 eck$LassoCheckResult]: Loop: 52#L207-1true assume !false; 5#L577true assume test_~splverifierCounter~0 < 4; 73#L578true test_~tmp~8 := test_#t~nondet37;havoc test_#t~nondet37; 190#L586true assume !(0 != test_~tmp~8); 170#L586-1true test_~tmp___0~3 := test_#t~nondet38;havoc test_#t~nondet38; 120#L596true assume !(0 != test_~tmp___0~3); 121#L596-1true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 128#L606true assume 0 != test_~tmp___2~0; 125#L612-2true assume !(0 != ~pumpRunning~0); 156#L333true assume !(0 != ~systemActive~0); 9#L340true havoc __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 158#L129-5true __utac_acc__Specification1_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; 43#L207true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 52#L207-1true [2019-01-01 23:36:49,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:36:49,857 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-01-01 23:36:49,860 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:36:49,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:36:49,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:49,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:36:49,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:50,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:36:50,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1675126782, now seen corresponding path program 1 times [2019-01-01 23:36:50,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:36:50,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:36:50,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:50,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:36:50,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:50,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:36:50,784 INFO L82 PathProgramCache]: Analyzing trace with hash 39152156, now seen corresponding path program 1 times [2019-01-01 23:36:50,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:36:50,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:36:50,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:50,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:36:50,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:36:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:36:51,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:36:51,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 23:36:51,238 WARN L181 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-01-01 23:36:51,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 23:36:51,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-01 23:36:51,311 INFO L87 Difference]: Start difference. First operand 222 states. Second operand 6 states. [2019-01-01 23:36:51,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:36:51,552 INFO L93 Difference]: Finished difference Result 222 states and 322 transitions. [2019-01-01 23:36:51,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 23:36:51,559 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 322 transitions. [2019-01-01 23:36:51,565 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2019-01-01 23:36:51,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 215 states and 315 transitions. [2019-01-01 23:36:51,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2019-01-01 23:36:51,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2019-01-01 23:36:51,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 315 transitions. [2019-01-01 23:36:51,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:36:51,579 INFO L705 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2019-01-01 23:36:51,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 315 transitions. [2019-01-01 23:36:51,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2019-01-01 23:36:51,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-01-01 23:36:51,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 315 transitions. [2019-01-01 23:36:51,627 INFO L728 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2019-01-01 23:36:51,627 INFO L608 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2019-01-01 23:36:51,627 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 23:36:51,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 315 transitions. [2019-01-01 23:36:51,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2019-01-01 23:36:51,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:36:51,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:36:51,632 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-01 23:36:51,632 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:36:51,633 INFO L794 eck$LassoCheckResult]: Stem: 586#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25); 473#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~6, main_~tmp~1;havoc main_~retValue_acc~6;havoc main_~tmp~1; 474#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 483#L73 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 635#L310 assume 0 != main_~tmp~1; 585#L286 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 537#L207-1 [2019-01-01 23:36:51,633 INFO L796 eck$LassoCheckResult]: Loop: 537#L207-1 assume !false; 466#L577 assume test_~splverifierCounter~0 < 4; 467#L578 test_~tmp~8 := test_#t~nondet37;havoc test_#t~nondet37; 584#L586 assume !(0 != test_~tmp~8); 591#L586-1 test_~tmp___0~3 := test_#t~nondet38;havoc test_#t~nondet38; 636#L596 assume !(0 != test_~tmp___0~3); 637#L596-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 639#L606 assume 0 != test_~tmp___2~0; 641#L612-2 assume !(0 != ~pumpRunning~0); 495#L333 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 498#L417 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 499#L391-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 574#L365-3 assume !(0 == ~pumpRunning~0); 475#L340 havoc __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 476#L129-5 __utac_acc__Specification1_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; 536#L207 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 537#L207-1 [2019-01-01 23:36:51,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:36:51,633 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-01-01 23:36:51,634 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:36:51,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:36:51,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:51,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:36:51,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:51,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:36:51,992 INFO L82 PathProgramCache]: Analyzing trace with hash 391395521, now seen corresponding path program 1 times [2019-01-01 23:36:51,992 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:36:51,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:36:51,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:51,993 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 23:36:51,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:36:52,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:36:52,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:36:52,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 23:36:52,058 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-01 23:36:52,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 23:36:52,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 23:36:52,060 INFO L87 Difference]: Start difference. First operand 215 states and 315 transitions. cyclomatic complexity: 102 Second operand 3 states. [2019-01-01 23:36:52,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:36:52,861 INFO L93 Difference]: Finished difference Result 211 states and 291 transitions. [2019-01-01 23:36:52,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 23:36:52,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 291 transitions. [2019-01-01 23:36:52,867 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2019-01-01 23:36:52,870 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 291 transitions. [2019-01-01 23:36:52,870 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2019-01-01 23:36:52,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2019-01-01 23:36:52,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 291 transitions. [2019-01-01 23:36:52,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:36:52,873 INFO L705 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2019-01-01 23:36:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 291 transitions. [2019-01-01 23:36:52,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2019-01-01 23:36:52,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-01-01 23:36:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2019-01-01 23:36:52,885 INFO L728 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2019-01-01 23:36:52,885 INFO L608 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2019-01-01 23:36:52,885 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 23:36:52,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 291 transitions. [2019-01-01 23:36:52,887 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2019-01-01 23:36:52,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:36:52,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:36:52,889 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-01 23:36:52,889 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:36:52,889 INFO L794 eck$LassoCheckResult]: Stem: 1040#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25); 917#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~6, main_~tmp~1;havoc main_~retValue_acc~6;havoc main_~tmp~1; 918#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 913#L73 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 907#L310 assume 0 != main_~tmp~1; 908#L286 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 971#L207-1 [2019-01-01 23:36:52,889 INFO L796 eck$LassoCheckResult]: Loop: 971#L207-1 assume !false; 904#L577 assume test_~splverifierCounter~0 < 4; 905#L578 test_~tmp~8 := test_#t~nondet37;havoc test_#t~nondet37; 1030#L586 assume !(0 != test_~tmp~8); 1035#L586-1 test_~tmp___0~3 := test_#t~nondet38;havoc test_#t~nondet38; 919#L596 assume !(0 != test_~tmp___0~3); 920#L596-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 926#L606 assume 0 != test_~tmp___2~0; 963#L612-2 assume !(0 != ~pumpRunning~0); 966#L333 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 940#L417 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 941#L391-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 914#L365-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret35, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 915#L169-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 937#L174-3 isHighWaterLevel_#t~ret35 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret35;havoc isHighWaterLevel_#t~ret35; 978#L536-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 1050#L536-11 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 1045#L542-3 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 991#L369-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 897#L340 havoc __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 922#L129-5 __utac_acc__Specification1_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; 970#L207 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 971#L207-1 [2019-01-01 23:36:52,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:36:52,890 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-01-01 23:36:52,890 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:36:52,890 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:36:52,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:52,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:36:52,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:53,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:36:53,209 INFO L82 PathProgramCache]: Analyzing trace with hash 697809965, now seen corresponding path program 1 times [2019-01-01 23:36:53,209 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:36:53,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:36:53,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:53,210 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 23:36:53,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:53,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:36:53,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1951115091, now seen corresponding path program 1 times [2019-01-01 23:36:53,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:36:53,232 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:36:53,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:53,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:36:53,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:36:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:36:54,519 WARN L181 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-01-01 23:36:54,753 WARN L181 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-01-01 23:37:24,892 WARN L181 SmtUtils]: Spent 30.13 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-01-01 23:37:39,910 WARN L181 SmtUtils]: Spent 15.02 s on a formula simplification that was a NOOP. DAG size: 449 [2019-01-01 23:37:40,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 11:37:40 BoogieIcfgContainer [2019-01-01 23:37:40,006 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 23:37:40,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 23:37:40,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 23:37:40,007 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 23:37:40,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:36:49" (3/4) ... [2019-01-01 23:37:40,013 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-01 23:37:40,102 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 23:37:40,103 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 23:37:40,104 INFO L168 Benchmark]: Toolchain (without parser) took 53446.14 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 314.6 MB). Free memory was 951.3 MB in the beginning and 844.8 MB in the end (delta: 106.5 MB). Peak memory consumption was 421.1 MB. Max. memory is 11.5 GB. [2019-01-01 23:37:40,106 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:37:40,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. [2019-01-01 23:37:40,107 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-01 23:37:40,108 INFO L168 Benchmark]: Boogie Preprocessor took 69.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-01 23:37:40,109 INFO L168 Benchmark]: RCFGBuilder took 2029.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.6 MB). Peak memory consumption was 79.6 MB. Max. memory is 11.5 GB. [2019-01-01 23:37:40,109 INFO L168 Benchmark]: BuchiAutomizer took 50373.58 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 1.0 GB in the beginning and 846.9 MB in the end (delta: 176.4 MB). Peak memory consumption was 393.4 MB. Max. memory is 11.5 GB. [2019-01-01 23:37:40,111 INFO L168 Benchmark]: Witness Printer took 96.20 ms. Allocated memory is still 1.3 GB. Free memory was 846.9 MB in the beginning and 844.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-01-01 23:37:40,116 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 778.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2029.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.6 MB). Peak memory consumption was 79.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 50373.58 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 1.0 GB in the beginning and 846.9 MB in the end (delta: 176.4 MB). Peak memory consumption was 393.4 MB. Max. memory is 11.5 GB. * Witness Printer took 96.20 ms. Allocated memory is still 1.3 GB. Free memory was 846.9 MB in the beginning and 844.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 211 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 50.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 48.9s. Construction of modules took 0.8s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 539 SDtfs, 1127 SDslu, 77 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 576]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8253} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=-16, NULL=0, NULL=8253, NULL=-24, retValue_acc=0, NULL=0, NULL=0, NULL=-10, NULL=-21, NULL=-20, methaneLevelCritical=0, NULL=-6, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ffc7750=0, NULL=-12, NULL=-2, tmp=0, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-17, tmp___0=0, NULL=-13, cleanupTimeShifts=4, NULL=-15, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75d91a7a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21e92bff=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@642d6a92=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bc3dd68=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@744bdbe5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48ee2688=0, NULL=0, systemActive=1, waterLevel=1, NULL=8252, NULL=0, NULL=0, \result=0, retValue_acc=0, NULL=0, NULL=-19, NULL=-14, \result=1, head=0, pumpRunning=0, \result=0, retValue_acc=1, tmp=1, NULL=0, NULL=0, tmp=0, \result=1, NULL=-3, NULL=-5, NULL=0, NULL=0, NULL=0, retValue_acc=1, tmp___0=0, tmp___2=62, NULL=-7, NULL=-9, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@452c3f0=0, splverifierCounter=0, NULL=0, \result=0, NULL=-23, NULL=-1, NULL=-4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@124bd45d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26f180a=0, NULL=-11, head=0, tmp=0, NULL=0, NULL=0, NULL=-8, NULL=0, NULL=0, NULL=-22, NULL=0, NULL=-18, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1033c82=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L225] int cleanupTimeShifts = 4; [L326] int pumpRunning = 0; [L327] int systemActive = 1; [L800] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L301] int retValue_acc ; [L302] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L308] tmp = valid_product() [L310] COND TRUE \read(tmp) [L567] int splverifierCounter ; [L568] int tmp ; [L569] int tmp___0 ; [L570] int tmp___1 ; [L571] int tmp___2 ; [L574] splverifierCounter = 0 Loop: [L576] COND TRUE 1 [L578] COND TRUE splverifierCounter < 4 [L584] tmp = __VERIFIER_nondet_int() [L586] COND FALSE !(\read(tmp)) [L594] tmp___0 = __VERIFIER_nondet_int() [L596] COND FALSE !(\read(tmp___0)) [L604] tmp___2 = __VERIFIER_nondet_int() [L606] COND TRUE \read(tmp___2) [L333] COND FALSE !(\read(pumpRunning)) [L340] COND TRUE \read(systemActive) [L414] int tmp ; [L417] COND FALSE !(\read(pumpRunning)) [L388] int tmp ; [L391] COND FALSE !(\read(pumpRunning)) [L362] int tmp ; [L365] COND TRUE ! pumpRunning [L528] int retValue_acc ; [L529] int tmp ; [L530] int tmp___0 ; [L166] int retValue_acc ; [L169] COND TRUE waterLevel < 2 [L170] retValue_acc = 1 [L171] return (retValue_acc); [L534] tmp = isHighWaterSensorDry() [L536] COND TRUE \read(tmp) [L537] tmp___0 = 0 [L541] retValue_acc = tmp___0 [L542] return (retValue_acc); [L367] tmp = isHighWaterLevel() [L369] COND FALSE !(\read(tmp)) [L200] int tmp ; [L201] int tmp___0 ; [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L205] tmp = isMethaneLevelCritical() [L207] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...